Heel-trimmer.



.R. L. GREENLEAF.

HEEL TRIMMER.

APPLIOATION FILED MAY 16, 1913 Patented Apr. 21, 1914.

avwmiioz fi.l. Greenleaf UNITED STATES PATENT OFFICE.

RUPERT LEWIS GREENLEAF, 0F BROGKTON, MASSACHUSETTS, ASSIGNOR OF ONE- HALF r0 FRANK A. CARLSON, or BROOKTON, MASSACHUSETTS. HEEL-TRIMMER.

1,093,846. Specification of Letters Patent. P t t APR 21, 1914 Application filed May 16, 1913. Serial No. 768,183.

cutter which will engage the rand or the upper side of the edge of the heel or sole and trim away the same in the operation of the device. The teeth of the cutter 1 are shaped on their under sides so as to bear firmly upon the spurs or lips of the rand cutter, so that, when the bolt 4 is turned home, the two cutters will be firmlv clamped to the shield, spaces being provided, however, between the rand cutter and the face two cutters through which the fine dust and shavings leather will readily escape so that the cutters cannot become clogged.

By referring more particularly to Figs. 3 and 4, it will be noted that a considerable space is left between successive teeth or spurs of the rand cutter and that a space Wlll be provided between the edge of said To all whom it may concern Be it known that I, RUPERT L. GREENLEAF, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Heel- 'lrimmers, of which the following is a specification.

This invention relates to heel trimmers, and its object is to so improve the construction of the shield and the manner of its cooperation with the lip or rand cutter that a space will be provided for the complete escape of all shavings and fine dust.

Other secondary objects of the invention will appear as the same proceeds and the invention consists in certain novel features which will be particularly pointed out in the claims following the description.

In the annexed drawings, which fully illustrate the invention: Figure 1 is an elecutter and the edge of the shield between vat-ion of a heel trlmmer embodymg my successive teeth so that the shavings and improvement as it appears before the parts fine dust cannot collect between the teeth but will be drawn under the rand cutter and be thrown out at.the back thereof through the centrifugal draft created by the rotation of the cutter. It will also be noted that a rather long cutting edge is provided on each spur or tooth of the rand cutter so that they will not be quickly worn down, and they are disposed at such an angle to the cuttin teeth 5 on the heel trimming cutter that they make a draw cut across the rand or the edge of the heel and will consequently operate very easily and smoothly.

It will be noted that as the recesses or seats 7 in the shield are deeper at their rear sides than at their front sides, when the parts are clamped together the back edge of the cutting lip will be somewhat lower than the cutting edge so that the cutting edg will be, in effect, lifted and a clearance space provided between the cutting edge and the back edge of the lip. The back edge of the lip, therefore, does not bear upon the work and, consequently, the tool will make a clean cut. At the same time, the edge trimmer will have a firm bearing upon the rand cutter and the rand cutter will be held squarely and firmly against the shield. The security of the rand cutter is enhanced by the resiliency of the same, so that it binds firmly against the shield when the securing bolt is driven home. As an ample clearance are clamped together; Fig. 2 is a slmilar view showing the device ready for use; Fig. 3 is a plan view of the device; Fig. 4 is a section on line 4c4: of Fig. 3; Fig. 5 is a plan view of the shield.

The heel or sole edge cutter 1 and the shield 2 are secured to the end of the arbor or shaft 3 by a screw or bolt 4 in the usual manner. The cutter 1 is constructed with a plurality of cutting teeth or edges 5 between which its edges are, in the illustrated construction, disposed inwardly from the edge of the shield to provide clearance for the shavings and fine dust. The shield 2 is provided in its upper face with depressions or recesses 7 in which the lips 8 of the rand cutter seat, as will be readily understood on reference to Figs. 1, 2 and 8.

The rand cutter consists of a resilient plate 9 having a central opening to fit around the end of the shaft 3 or the collar thereon, and the plate is dished as shown clearly in Fig. 2 so that a space 10 will be provided between the cutter and the shield.

It will be noted from the drawings that the recesses 7 are wider than the lips, spurs or teeth 8 and are deeper at the rear side than at the forward side.

The forward edge 13 of each tooth or spur is under-cut or beveled so as to furnish a cutting edge approximately radial to the is provided between the concave face of the cutter and the face of the shield, the dust cannot collect upon the cutter and clog the same and cause burning of the shoe. The cutting edge of the rand cutter is so disposed that the raw edge of the sole or heel comes in contact only with the sharp edge of the cutter so that splitting of the rand will not occur. \Vhile the cutter has a firm bearing upon the shield the contacting surfaces are very slight so that Wear upon the shield is very slight and only a sharp cutting edge comes in contact with the sole or heel.

What I claim is 1. In a heel-trimmer, the combination of a shield having spaced depressions in its upper face, said depressions being deeper at their rear sides than their front sides, a rand cutter having lips seating in said de- Gopies of this patent may be obtained for the shield and the edge cutter whereby the i edge cutter will force the lips of the rand cutter to the bases of the depressions.

In testimony whereof I aiiix my signature in presence of two Witnesses.

RUPERT LEWIS GREENLEAF. Witnesses ALBERT M. VVrLson, J OHN I-I. TURNER.

five cents each, by addressing the Commissioner of Patents.

Washington, D. 0. 

